Filler-body for packer-heads of tile-machines



F. A. RDOSA.

FILLER BODY FOR PACKVER HEADS 0F TILE MACHINES.

APPLICATION FILED DEC. 9, I9I9.

melma' oef.- 19,1920.

Jn venan Frank/ljoosa u I I I I l l r I y I v I I I I I I 1 I Q Fz'g. 4.

UNITED `STATES PATENT OFFICE.

FRANK n. Roose., OE ORANGE TOWNSHIP, BLACKIIAW'K OONTY, IOWA, AssIGNoRro PIONEER. MANUFACTURING COMPANY, OE WATERLOO, IOWA, A CORPORATION OFIOWA.

PILLER-BODY EOR PAOKERFIIEADS OP TILE-MACHINES.

Patented oet. 19, 1920.

ApplicationV led December 9, 1919. Serial No. 343,539.

useful Improvements in Filler-Bodies for `Packer-Heads of Tile-Machines,of which the following is a specification.

My invention relates to improvements in liller-bodies for former-headsof tile Inachines, and the object of my improvement is to perfect theoperationof machines for forming hollow tile from concrete, while, at

the same time, effecting a great reduction in c convex fa ces of theabutments 3 by means of the amount of power required for'performing theoperation.

This obfect I have accomplished. by the means which are hereinafterdescribed and claimed, and which are illustrated in the accompanyingdrawings, in which Figure 1 is a vertical central section of ahollow'mold and pallet, showing a rotatable former-head within the mold,parts of said head being shown in vertical central section. Fig. 2 is ahorizontal section of said mold and former head, taken on the brokenline 2 2 of Fig.

1. Fig. 3 is a topplan view of said mold and former head, the shaft ofthe latter being in cross section. Fig. 4; is an enlarged perspectiveView of the'covering plate and of filler-bodies adjustably mountedthereon. Fig. 5 is a perspective view of a formerhead having a largernumber of trowelingprojections, and equipped with my improvedfiller-bodies. Fig. 6 is a plan view of the covering plate used with theformer-head shown in said Fig. 5, and Fig. 7 is a perspective view of afiller-body of the type used in connection with the covei'ing-plateshown in said Fig. 6.

Similar numerals of reference denote corresponding parts throughout theseveral views.

Referring to Fig. 1, the numeral 7 denotes a simple form of mold, ofhollow cylindrical form, supported upon an annular pallet 8 andconcentric therewith. The numeral 6 denotes an operating shaft which maybe rotated and also simultaneously.reciprocated centrally within andthrough the mold 7 by mechanism of any desired type.

Upon the lower end of said shaft is coaX- ially secured a formenheadwhich is rotatable therewith, and whose outer circumferla hollow tile tobe formed between them from concrete deposited within the open ilp-k perend of said mold. The former-head .comprises a depending hollowcylindrical 'smoothing body 1, having a central thread# led orifice toreceive the eXteriorly thread- Ved lower endof said shaft at 5. Curvedprojections or abutments 3 extend oppositely and laterally alsovertically, from the shaft .6 immediately above the body 1. The nu-Ineral 2 denotes troweling-bodies, crescental in cross-section, whichare secured upon the bolts 4, in order to be Vreplaceable by others iofdifferent dimensions, or when worn out.

In Figs. 1 to 4, inclusive, where there are but'two troweling bodies 2,the covering v plate 13 and pair of filler-bodies 9 are appro- In Figs.5 to 7, inclusive, said'parts 13 and 9 are slightly modified in form toserve the above purpose for use with a former-head having a largernumber of troweling-bodies, in this case, four.

.The covering plate 13 is flat, and provided with a central opening 14to seat it about the shaft 6 so that it may be supported upon the topsof the troweling bodies 2. Said plate is provided with a plurality ofcurved slots 11 equidistant and near its edge for a purpose to bedescribed. The numeral 9 denotes a filler-body having a segmental curvedvertical wall and an inwardly extended horizontal ledge 10 which inwhole o r in part, according to adjustment, underlies parts of the lowersurface of the plate v13, and is removably adjustably secured thereto bybolts 12 traversing bolt-holes 15 1n the ledge 10 and a curved slot 11in the plate 13. It will be seen that when these ioo connected elementsare assembled with the troweling-bodies 2, they are mounted between saidbodies completely inclosing the inner parts of the interspaces of saidbodies, but leaving exposed sufiicient of the troweling surface of saidbodies and receiving lspace adjacent thereto as may be necessary for thesuccessful functioning of the former-head. As shown in said Fig. 2, the

filler-body walls are curved in such a manner that when mounted on theformer-head,

n affords sufficient room for the reception of the descending concrete,the other end of the space being. made narrow because not needed. i

In the former practice, where formerbodies of the type shown have beenused, but rwithoutV the use of my said ller body, large interspaces areleft between the troweling-bodies which receive and become lled up withmasses of concrete materials. In the operation of the` device, thesemasses engorge the former-head causing much friction and loss of power.Also, detached masses are at times projected outwardly and being oftenof different consistency than the average mixture supplied, producebodies ofdifferent degrees of density in the tile, changing itshomogeneity, which irregularity may'lead to failure of' the tile. Whenmy said filler-bodies are-used, as shown, said interspaces of thetroweling-bodies are so narrowed that only sufficient clearance is leftadjacentthe troweling bodies for their eflicient functioning as themixture is supplied. Much friction is thereby obviated, in fact, thepower necessary amounts to but a small fraction of that employed whenthe liller bodies are not used. The liller bodies may be varied in shapeas desired.

Vllaving described my invention, what I claim as new, and desire tosecure by Letters Patent, is:

1. A former-head for a tile machine, having spacedy trowelingprojections, and fillerprojections.

bodies within the inner parts ofthe interspacvesgof said projections.

2. A former-head for a tile machine, having spacedtroweling'projections, and iillerbodies removably mounted within theinterspaces ofA said projections.

3. A former-head for a tile machine, having spaced trowelingprojections, and lillerbodies adjustably mounted within the interspacesof said projections.

4. A former-head for a tile machine, having spaced trowelingprojections, a capbody. mounted over said projections, and filler-bodieson said cap-body extending between said projections.

5. A former-head for a tile machine, having spaced trowelingprojections, a capbody mounted removably over said projec- Y tions, andfiller-bodies removably mounted on said cap-body and depending toinclose the inner parts of the interspaces of, said 6. A former-head fora tile-machine, having a basal smoothing cylinder and spaced trowelingprojections above said cylinder,

and filler-bodiesmounted upon said cylinder between said projections.

` 7. A former-head for a tile machine, having `a basal smoothingcylinder and-spaced troweling Vprojections thercabove, a platepositioned removably upon said projections, and filler-bodies adjustablymounted upon said plateV and depending into `the interspaces of saidprojections toward said cylinder.

Signed at Waterloo, Iowa, this 1st day of Dec.,f1919.

FRANK A. Roosa,

